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How Do You Know What Time It Is?
How Do You Know What Time It Is
Author: Robert E. Wells
Time is a mystery. And even though we can't see it or touch it, we can measure it--with clocks. But a long time ago, there were no clocks. Back then, people measured time by the sun. Egyptians were the first to keep track of time, with a shadow stick clock, and they were the first to divide time into hours. While clocks kept track of hours, th...  more »
ISBN-13: 9780807579398
ISBN-10: 0807579394
Publication Date: 9/2002
Pages: 32
Reading Level: Ages 9-12
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Publisher: Albert Whitman Company
Book Type: Hardcover
Members Wishing: 0
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